var idCardNoUtil = {
  /*省,直辖市代码表*/
  provinceAndCitys: {11:"北京",12:"天津",13:"河北",14:"山西",15:"内蒙古",21:"辽宁",22:"吉林",23:"黑龙江",
  31:"上海",32:"江苏",33:"浙江",34:"安徽",35:"福建",36:"江西",37:"山东",41:"河南",42:"湖北",43:"湖南",44:"广东",
  45:"广西",46:"海南",50:"重庆",51:"四川",52:"贵州",53:"云南",54:"西藏",61:"陕西",62:"甘肃",63:"青海",64:"宁夏",
  65:"新疆",71:"台湾",81:"香港",82:"澳门",91:"国外"},
 
  /*每位加权因子*/
  powers: ["7","9","10","5","8","4","2","1","6","3","7","9","10","5","8","4","2"],
  
  /*第18位校检码*/
  parityBit: ["1","0","X","9","8","7","6","5","4","3","2"],
 
  /*性别*/
  genders: {male:"男",female:"女"},
 
  /*校验地址码*/
  checkAddressCode: function(addressCode){
     var check = /^[1-9]\d{5}$/.test(addressCode);
     if(!check) return false;
     if(idCardNoUtil.provinceAndCitys[parseInt(addressCode.substring(0,2))]){
       return true;
     }else{
       return false;
     }
  },
 
  /*校验日期码*/
  checkBirthDayCode: function(birDayCode){
      var check = /^[1-9]\d{3}((0[1-9])|(1[0-2]))((0[1-9])|([1-2][0-9])|(3[0-1]))$/.test(birDayCode);
      if(!check) return false;    
      var yyyy = parseInt(birDayCode.substring(0,4),10);
      var mm = parseInt(birDayCode.substring(4,6),10);
      var dd = parseInt(birDayCode.substring(6),10);
   var xdata = new Date(yyyy,mm-1,dd);
   if(xdata > new Date()){
      return false;//生日不能大于当前日期
   }else if ( ( xdata.getFullYear() == yyyy ) && ( xdata.getMonth () == mm - 1 ) && ( xdata.getDate() == dd ) ){
      return true;
   }else{
      return false;
   }
  },
  
  /*计算校检码*/
  getParityBit: function(idCardNo){
    var id17 = idCardNo.substring(0,17);    
     /*加权 */
     var power = 0;
     for(var i=0;i<17;i++){
       power += parseInt(id17.charAt(i),10) * parseInt(idCardNoUtil.powers[i]);
     }              
     /*取模*/ 
     var mod = power % 11;
     return idCardNoUtil.parityBit[mod];
  },
  
  /*验证校检码*/
  checkParityBit: function(idCardNo){
     var parityBit = idCardNo.charAt(17).toUpperCase();
     if(idCardNoUtil.getParityBit(idCardNo) == parityBit){
         return true;
     }else{
         return false;
     }
  },
 
  /*校验15位或18位的身份证号码*/
  checkIdCardNo: function(idCardNo){
    //15位和18位身份证号码的基本校验
    var check = /^\d{15}|(\d{17}(\d|x|X))$/.test(idCardNo);
    if(!check) return false;
    //判断长度为15位或18位  
    if(idCardNo.length==15){
        return idCardNoUtil.check15IdCardNo(idCardNo);
    }else if(idCardNo.length==18){
        return idCardNoUtil.check18IdCardNo(idCardNo);
    }else{
        return false;
    }
  },
 
  //校验15位的身份证号码
  check15IdCardNo: function(idCardNo){
     //15位身份证号码的基本校验
     var check = /^[1-9]\d{7}((0[1-9])|(1[0-2]))((0[1-9])|([1-2][0-9])|(3[0-1]))\d{3}$/.test(idCardNo);   
     if(!check) return false;
     //校验地址码
     var addressCode = idCardNo.substring(0,6);
     check = idCardNoUtil.checkAddressCode(addressCode);
     if(!check) return false;
     var birDayCode = '19' + idCardNo.substring(6,12);
     //校验日期码
     return idCardNoUtil.checkBirthDayCode(birDayCode);
  },
 
  //校验18位的身份证号码
  check18IdCardNo: function(idCardNo){
     //18位身份证号码的基本格式校验
     var check = /^[1-9]\d{5}[1-9]\d{3}((0[1-9])|(1[0-2]))((0[1-9])|([1-2][0-9])|(3[0-1]))\d{3}(\d|x|X)$/.test(idCardNo);
     if(!check) return false;
     //校验地址码
     var addressCode = idCardNo.substring(0,6);
     check = idCardNoUtil.checkAddressCode(addressCode);
     if(!check) return false;
     //校验日期码
     var birDayCode = idCardNo.substring(6,14);
     check = idCardNoUtil.checkBirthDayCode(birDayCode);
     if(!check) return false;
     //验证校检码   
     return idCardNoUtil.checkParityBit(idCardNo);   
  },
 
  formateDateCN: function(day){
       var yyyy =day.substring(0,4);
       var mm = day.substring(4,6);
       var dd = day.substring(6);
       return yyyy + '-' + mm +'-' + dd;
  },
 
  //获取信息
  getIdCardInfo: function(idCardNo){
     var idCardInfo = {
       gender:"",   //性别
       birthday:"" // 出生日期(yyyy-mm-dd)
     };
    if(idCardNo.length==15){
        var aday = '19' + idCardNo.substring(6,12);
        idCardInfo.birthday=idCardNoUtil.formateDateCN(aday);
        if(parseInt(idCardNo.charAt(14))%2==0){
            idCardInfo.gender=idCardNoUtil.genders.female;
        }else{
            idCardInfo.gender=idCardNoUtil.genders.male;
        }     
    }else if(idCardNo.length==18){
        var aday = idCardNo.substring(6,14);
        idCardInfo.birthday=idCardNoUtil.formateDateCN(aday);
         if(parseInt(idCardNo.charAt(16))%2==0){
            idCardInfo.gender=idCardNoUtil.genders.female;
        }else{
            idCardInfo.gender=idCardNoUtil.genders.male;
        } 
        
    }
    return idCardInfo;
  },
  
  /*18位转15位*/
  getId15: function(idCardNo){
   if(idCardNo.length==15){
       return idCardNo;
   }else if(idCardNo.length==18){
       return idCardNo.substring(0,6) + idCardNo.substring(8,17); 
   }else{
    return null;
   }
  },
  
  /*15位转18位*/
  getId18: function(idCardNo){
   if(idCardNo.length==15){
       var id17 = idCardNo.substring(0,6) + '19' + idCardNo.substring(6);
       var parityBit = idCardNoUtil.getParityBit(id17);
       return id17 + parityBit;
   }else if(idCardNo.length==18){
       return idCardNo;
   }else{
    return null;
   }
  },
  checkPhone:function(phone){
      var checkP = /^1(3|4|5|7|8)[0-9]{9}$/.test(phone);
     return checkP;
}
};
